Has any one have a Starr manifold on there 304? has any one had car dyno to see how much power gains are made? starr claim 40kw anyone have any data proving this.? Cheers

make that 2 ppl interested

Had a starr manifold on my VP... The car went harder with the new manifold but only due to the fact that you only needed to push the throttle down half way to get the same amount of air... The restriction in the bananas comes from the runner internal diameter and not the throttle body. Youd be better off getting a standard bored out to 70mm. Standard manifold only becomes restrictive for a 304 after 5500-6000rpm Personally, i wouldn't get Starr one again, the power gain is minimal for the dollars spent... For a 304 i'd go ported throttle. You might try Trickshift, shortening the runners makes more sense to me than sticking a huge throttle body on the front. For the 355-383-396 go the COME. Just my opinion...