Wally Booth, raced a '69 Super Bee for Detroit Dodge dealers, built engines for Edelbrock alongside Grumpy Jenkins, and pulled 900 Hp out of a 360 at 9k by sectioning heads, using 4 heads to make 2 with bigger ports and improved flow

 

there's a good article at Motor Trend, reprinted from a 2015 article from Elapsed Times magazine, and it chronicles Booth's racing history, and AMC's efforts to remain competitive (Super Stock Hurst AMX's for example, Shirley Shahan driving, trying to get Dyno Don to move over from Ford, etc) 

Booths incredible drive to excel at drag racing resulted in his Hornet, of all things, beating Jack ROUSH of all drivers, in the Pro Stock final at the NHRA Gatornationals, 8.97 to 9.01 in March of 74

Booth won 5 national events, the 74 Gatornats, and in 1976, the US Nats, Sping Fall and WinterNats, 

https://www.motortrend.com/features/pro-stock-racing-wally-booth-amc-drag-cars