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Author Topic:   msd pro billit..
Dirt Full Roller

Total posts: 29
posted June 07, 2004 08:55 PM  
may sound silly but just how do you lock out a msd pro billit for a small block. We seem to not get up to speed fast enough and the timming is ok , valve springs are ok they are new.
Just not getting the revs we need to get and the gearing we know is right to.
And say graig dirtracer14 I should have asked you this when I had you on the cell phone and you told me about this.

Any hellp would be wonderful....


Dirt Forum Champ
Total posts: 1261
posted June 07, 2004 09:50 PM  
Hey ron you have to pull out the dist....pull the roll pin from the lower gear and pull the gear...then pull the shaft up about 3". Oh ya pull the rotor and the advance weights off. After pulling it out about 3" there is a small nut under the advance plate take it off dont loose the washer. Pull the center shaft up till the stud clears and rotate about 180 degree to the hole that it fits right into drop it in and put the nut back on....leave the weights off drop shaft back down in dist and re install the gear..put rotor back on...put back in motor and go fast turn left make sure you reset timing.

Dirt Maniac

Total posts: 128
posted June 07, 2004 09:51 PM  
No, locking the advance on the distributor is totally optional. We have done this just because it could eliminate a potental problem of the advance weights sticking, i have seen it happen. you would set the base timing, and then get your advance curve set, zing the trottle and the weight would for some reason stick closed and not advance the timing at all. It is like i said a personal opinion

Dirt Full Roller

Total posts: 29
posted June 07, 2004 10:40 PM  
thanks graig see I now I should have asked you now can print this out and not screw it up talk to you soon.

thanks again.


Dirt Forum Racer

Total posts: 97
posted June 09, 2004 04:54 PM  
Lock it and dont look back!!!! We havent had an ignition problem since we locked it. Doesnt seem to ever affect the car at takoff or anything, actually right after we did the car felt like it had more power.


Dirt Forum Champ
Total posts: 1261
posted June 09, 2004 07:31 PM  
Ditto 92

Dirt Freak

Total posts: 370
posted June 09, 2004 09:14 PM  
I would check carb, cam timing, ect before I would worry much about advance mechs. Advance mechanisms are mostly for off idle performance from a standstill in 5000 pound cars. Have little relevance on dirt track when your starting at 3 or 4 thousand and you should already be at full advance. I'd be more worried about it over advancing and cooking something. MY 2

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