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					Originally Posted by  Firebird
					 
				 
				iv got a 350 hydamatic trans and a choke would be nice since its very cold in the morning. as for the bore, i dont know what it is, ill have to look. is it possible to buy and adapter for spread to square or square to spread bore? 
			
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 It is possible to buy a spreadbore to squarebore adapter for a carb, assuming you mean going from Q-jet to square bore. Pep boys sells it. 
Alot of guys may disagree, but if all you are looking to do is upgrade to a four barrel carb, I would buy an edelbrock performer intake manifold, ( you can probably find one used for like 50 bucks) and use a performer 1406 carb. (600cfm.) I had this setup on a 305 chevy. It ran great with no issues and I got away with no adjustments whatesoever. The standard holley 600cfm carb you can buy at pep boys would also be a great choice for an otherwise stock 307.