Has anyone tested or tried?
Of course, everyone is going to tell you....why are you doing all of that work and not adding some cam also? Higher flow heads make more power from the same cam.
Give it a try.
These were both ls1 intake cars, ls6 intake probably would have helped the 799 headed car make a wider gap in HP.
But for me...I would at least do a little baby cam while I was at it. Car would still have excellent manners but be able to better take advantage of the heads and honestly I hate the "boat" gurgle sound of stock cam cars/trucks. Especially since you will have to tune the car either way...
https://ls1tech.com/forums/dynamomet...stock-cam.html





