Reply to "Intake manifold identification"

bosswrenchMember

No many spreadbores around any more- the few Holley spreadbores made are tightlky restricted emissions carbs that are close to impossible to adjust or tune. Rochester (GM) spreadbores are all out of production since the mid-80s due to GM going exclusively to EFI. I advise abandoning your iron intake for a lighter more modern manifold drilled for a square-pattern carb. Since you're shopping, perhaps the popular Edelbrock Performer intake and their matching Edelbrock carb would be to your liking, to which they bought the mfgr rights a decade ago from Carter Carburetor. Be aware that tuning such a carb is totally different than with a square-pattern Holley & being out of the mainstream (Holley), you'll likely get little tuning advice thats useable.

5/5/041:37 PM

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