Cam swap need some input

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Dusterkid, are you using a machine shop in Buford?
 
1973dusterkid said:
Got the heads back the CR ratio after they were milled is going to be 9.25.1
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To go from 7.7 to 9.25 is WAY more than to need the intake milled. It WILL need milling. That had to be over .100" of an inch off the heads. To get 1 compression point is around .070" on a small block head. That's over 1.5 points difference. Just because the bolts may still line up, doesn't mean it's right. Bolt alignment is not the only reason to mill the intake. You're also going to very likely need shorter pushrods. That's going to be one hell of a difference in lifter preload.
 
Got it started and broke the cam in.only problem was I put the alternator bracket on wrong and belt made some noise no big got that fixed and it all went great.
 
Good to hear.

Just out of curiosity, how much did you have milled from the heads and what did they CC?
 
Then using the .025 head gasket and .100" for the piston in the hole (it's probably more) you have 8.83:1.
 
9.2 with the thin head gasket.
 
Still working some bugs out and the alternator took a crap.its raining so i can go out and tune.I dont think its as choppy idle as the .474 lift cam but it still pretty bad and revs a hole lot faster.
 
Good going,kid. I would be curious, how the intake lined up. Did the machinist, mill the intake side of the heads?
 
? As far as spark plug reading

The plugs are white almost like baby power.The engine temp is a little under 200.The plugs are autolight with a heat range of 65 gapped at 35.
 
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