I have a motor i just built and the pistons were 12.7to1 and i had the block milled once and the heads twice i was tring to run 112 octane race gas just put new plugs in and when i went to start it it pined badddd is my fuel not good enogh if not how hard is it to put on alcohol???

Oh I only have enoghe timing in it to keep it runnin just before it dies

I may not be the best one to answer your question, but I will take a shot at helping.

1. You say you had the block cut and the heads cut twice. How much P to V clearance do you have? What is your quench area clearance?
2. How much timing is just enough?

We idle a SBC that is a true static 15-1 on 87 octane pump gas. This motor is alcohol injected and we use a primer system to warm and start the car with.

3. Did you verify the pointer is at top dead center with a piston stop when you built the motor?

A little more info might be in order to really help though.

Curtis

Not sure on p to v I just put it togheter if it hit it hit if it didnt it didnt. about 23-25. just whent turned it till it waz all the way to tdc and did cam timing im runnin a soild cam so it sould have plenty of room.

it maybe to late, but are you running a spring advanced or a locked out Dist. have you checked the Dist springs, it maybe pulling a lot of advance at start up ??