How much HP from SBM ProComps? Well... 670HP!

The 396 is my engine. Finally got all the piddly stuff I needed to complete finished, and I got my car to the track over the weekend.

1975 Duster ~3500# with me in it. hemi 4 speed Liberty proshifted gears, Dana w/ 4.30 gears, 28 x 9 slicks 12.25#, drag shocks, comp eng slide a links

Sat 15-30 MPH crosswind, not ideal day for testing, no complete passes outta 4, had to lift
Sun calm perfect day, 1st pass quicker than Sat best, made 3 more and got better from there.

Last pass of season finally launched her at a higher RPM after creeping up on it all weekend, appx 5500rpm. (wired two step to line loc, doesn't do me favors for burnout, so I didn't use it gonna add another switch)

Shift light 6800, I believe traps was about 6400.

60' 1.584 330' 4.618 1/8 7.144 mph 97.86 1000' 9.319 1/4 11.158 mph 122.86

She has more in her with a higher RPM launch and a good track plus monkeying with air pressure etc. First time I ever launched a 4 speed at the track where it basically didn't bog, had the deer in the headlights thing going when the shift light came on so quick for 1-2 shift. Perfect shifts/shift points along with 7100-7200 shift light and better 60' time should get me in the 10's. Maybe need 4.56 or 4.88 gears just too early to know, it may be ok with 4.30's? Just ran outta time this weekend with the track being so jammed, and the season is now over.

I've run 15 passes in a 10 second car before, but with an Automatic, old school stick is a real handful but a fun handful at that !! Fun weekend !:burnout: