Why not start the engine and let it run for a minute to get the lifters pressurized, turn it off and yank the covers and rockers and then measure off the push rods? The dial indicator doesn't have enough spring pressure to compress the lifters so they should stay where they are when you check...
I have not used their fuel pumps but everything they sell they stand behind and they are great people. You won't have any problems and if ya do, call them, they'll make it right.
Sounds like you're doing it right except the cam....I would run something in the 250+ at .050" range in a solid....roller if you can afford it. If you want big power you need to spin it to 7000+
And make sure the heads are ok....they tend to crack
Your problem isn't with the piston to valve clearance, it's your static compression ratio. If you go to a longer duration cam you will bleed off too much compression and then you actually make less power.
Every cam has a suggested static compression ratio. If you go above it your motor will...
Hughes!
Comp talked **** about everyone else's aluminum roller rockers while they sold their craptastic iron rockers and now they say they have miraculously figured out how to make them out of aluminum CORRECTLY??? Really?
I have first hand experience with their magnum iron rockers....and...
That's a 6800 rpm cam and it doesn't start pulling until 2600. At least 3.91 gears with short tires will be needed.
243/251 @ .050" and .546"/.566" lift
2600-6800 rpm
Springs should have 130 pounds of seat pressure with 1.7" installed height.
Lunati is correct in telling you to change...
You're right on this. The timing is key.
With the regulator between the fuel rail and the pump it can't react quick enough. It's getting conflicting pressure signals from both the pump and the injectors.
With it on the far side of the fuel rail it can keep it steady.