Holley carb buick 350

would a 750 be plenty of carb for a street/strip 350? engine is a 355, 10.5:1 comp, stock heads oversized valves, SP3 intake, 1 3/4 headers, 230/237 110lsa hydraulic roller. also im piecing a 750hp together would a 30cc or 50cc accelerator pump be better and what needle and seat size should I use?

 

130 seat, and I would start with 30cc and yes a 750 DP would bey choice for a hot 350, start with a 25 squirter

 

any benefit with the adjustable needle and seat?

 

No, never heard of that to be honest tho

 

That’s how you adjust float level on some Holley.

 

Yea of course, that's what threw me off mentioning an adjustable needle and seat they all are for the float level, didn't know if there was some kind of new adjustable size seat or something

 

Changeable air bleeds are are very nice to dial in the idle circuit if too fat.

 

Yes air bleeds are about the only real way to dial one in perfect most the time