alright i pick up the 383 shortblock sat and was wondering what carb i should look at. the engine is around 10:1 with a .510 lift across the board and 3-- something durantion. flattop pistons and i was planning on putting a weiand team g intake on and was wondering what carb. my dad sayd a 650 vac sec spreadbore will me plenty but i am doubting and think a 750 would be good. anyone help me out here?

 

A carb slightly on the small side will work better with a single plane intake, because the intake smooths out the pulses of flow that exist in an intake with small runners; those pulses are a higher peak flow than the usual CFM formula would predict which is why a somewhat larger carb will work better on a dual-plane intake.

750 is plenty large, 650 is too small.

 

750 would best.

 

so the 650 is to small for my 383. my dad said it wouldnt be to much or not enough he said it would be good but iwas thinkin the 750 dp. so far its 2 votes for 750 right?

 

750

 

is there anything wrong with buying a 750 dp from ebay and put a kit in it? just to save money or should i save up and buy new. i figure around 50-75 for a used one and a kit off ebay but how much does parts cleaner usually run? something like chemdip?