Originally Posted By: gbauer
Sounds like trial and error are involved...

For tuning I think so. As for the stock engine capability, I think it's probably impossible to say what amount of boost they can handle. If they were all brand new from the factory you might be able to get consistent reports from people but no 2 are alike now, making it impossible to know.

As for tuning, The Holly 600 I have is going to be a guessing game for me. I've got it all rebuilt but it didn't come setup stock. Stock or not, I don't know the best initial setup for this oversized carb.

Right now it has a 65/75 jets, 6.5 Power valve and 31/32 squirters. I never provided pics of the rebuilt carb...





If anyone has any thoughts on a good starting point for carb jets/squirters for my 250 (intercooled cold air intake but no turbo) please share. I'll add the turbo and devils own kit once the engine runs "stock".

Ian

p.s. new pistons ordered with a 12CC dish targeting 9:1 CR


67' Camaro - Performance 250 build - www.TurboCamaro.ca