360, SB, 8.5 Comp, XE256H Cam, 1 5/8 Headers through 2.5 exhaust, 904 Tranny, 3.55 Peg-Leg

Holley 600 Vac Secondary

OK, recently took the kids truck to the track and realized the vacuum secondary wasn't opening.....back home realized it was just barely touching a corner of the spread-bore to square-bore adapter plate and just took a tiny smack to gently bend it out of the way.

Now....when you whack the go-peddle in 1st it falls on it's face for an instant and then it's off we go.

Have the lightest spring in it (quick change) is it coming in too soon or too late....my thought is too soon and want to try the next spring up....what do you guys think

Rickster