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Ya that was kind of the response I was expecting. I knew my options just didn't know if there was a simple answer like "oh #5 and #6 are always the leanest" The intake is a Indy single plane.

Finishing my headers for my boosted 512 and will be running a two sensor wideband. What cylinders are typically the leanest or should i just stick one in each collector?

Boost is an investment. Read and tally up cost to see if you have the budget. Not saying your cheap but boost can get expensive quick.

I cant get past the 40-60 lbs of boost.

That is awesome. How do you like that C&S setup?

Thanks for all the help guys. I am going to find out what piston will be best and use the biggest stroke I can.

I knew I was going to get the block comment and that's ok. Love to have one but don't have the cash and if I could buy one it would be a waist of money to not go aluminum and 4.50 bore and maybe 55mm raised cam. At that point I don't have the heads for 4.5 bore, ect, ect. I will keep the tune...

Most of the off the shelf pistons I have been looking at are diamond or icon. I may also get a custom set of Steve Morris/ diamond pistons. The CH of the piston will not be shorter than 1.300 because I don't want the ring pack getting into the pin area and also I want the stability. I understand...

rusty that's part of the problem. The cost is the same no matter which way I build it.

I have been leaning toward the 470 just wanted some one to give me the warm and fuzzies. My main question was which combo would react better to boost from a timing and exhaust standpoint. Or would the difference between 1.54 to 1.73 RR be to small compared to the side loading increase on the...

I am about ready to buy my rotating kit form my 400 stroker build and I need some input. The car will be a F1x pump gas "street" car 6500 max sealing. I want to keep the piston CH above 1.300 and have made a matrix of my rod options. I know rod ratios are not that big of an issue but because...

that's what I needed. What about blow off vales I have one red should I mount it before the hat or before the intercooler? should I add a second unit by the hat to handle the boost when or if I chop the throttle?

I am nearing the point of needing to get a intercooler for layout on my car. 470 B motor with a F1X pump gas street car. I was planning on running A2W on a boost switch and was wondering if a person can go too big on an intercooler. I was going to run a cheap frozenboost type 12 and run 4"...

Are you going to stay with the meth injection? I am billding a street centrifugal now and weighing my options a meth, a2a, or w2a, or combo.

I have just finished a set of 2" primary to 3.5" headers to go to a 3" short exhaust system. Now that I am building a 470 procharger motor I am thinking about sepping up to 2 1/4" to 4" headers while still using my 3" Borla xr mufflers. Can I step the exaust pipes down one inch over say a 5...

all of those numbers are in square inches I just didn't take the time to indicate it. the tube sizes are all ID I subtracted for the 16gauge material. The 2.5 came form an average of gaskets sizes I found on line because I don't have the heads in front of me. I fudged the radiuses because I...

Well this kind of stinks. My math: stock port opening at about -2.5" 1.75 primary = 2.14 x4=8.56 1.875 primary =2.46 x4=9.89 2.00 primary =2.84 x4=11.36 2.15 primary =3.14 x4=12.56 2.25 primary =4.15 x4=16.6 3.5 collector =9.08 (use 1.75 maybe 1.875) 4.0 collector =11.95 (use...

would that mean 4x the volume of one primary tube. example 2" tube 30" long with a volume of roughly 174.74" with a 3.5" collector at 5" long? or do you mean take the 174.74 x4= 698.96 which would require a 3.5" collector to be roughly 30" long?

I finally bit the bullet (well really swallowed the whole gun) a bought a F1x rev front mount Procharger for a 400 low deck stroker build. My plan is a 470 blow through pump gas engine street engine. My build has some gaps- mainly a short block but I do have a block I was using for mock up...