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thirstybob · 04-04-2020, 01:02 PM

Would you happen to know if I should try and increase the valve size? If so, how big can I go? I understand that close port heads have the ability for increased compression which is good? Will larger than stock valves be of any benefit?
My goal is to get as much respectable performance as possible in a low budget kind of way, working with what I have.
Currently, Edelbrock 1407, Performer manifold, true duals, stock exhaust manifolds, stock 14 bolt FF, TH400.
My next purchase is headers, H pipe and complete exhaust.

04-04-2020, 01:02 PM	#4
thirstybob Registered User Join Date: Mar 2019 Location: Denver, CO Posts: 42	Re: Head ID 3917215 Would you happen to know if I should try and increase the valve size? If so, how big can I go? I understand that close port heads have the ability for increased compression which is good? Will larger than stock valves be of any benefit? My goal is to get as much respectable performance as possible in a low budget kind of way, working with what I have. Currently, Edelbrock 1407, Performer manifold, true duals, stock exhaust manifolds, stock 14 bolt FF, TH400. My next purchase is headers, H pipe and complete exhaust.