Small block intake ?

Really??

I have used the Strip Dominator since 1980. Tested it against all that 2 plane crap and the SD is ALWAYS better than all the others. If it isn't it's your combo. Usually way too wide LSA, which looks to be at least one issue you have.

In 1980 I put 360 heads with a 3 angle valve job on a 318. Had the 284 purple cam, SD, Hooker 5204 headers, 3.55 gears and a B&M Holeshot converter (about 2800 RPM stall). The car ran 12.80's all day long, won more beer that I could drink and fooled more posers than I can count.
Fix you combo.

Just my .00000000000000000000000193423 cents