Okay, here is what I got, please keep in mind that I purchased this motor and all I have is the mechanics sheet of what was done. I will start from the rear. I have the stock suspension in the rear, but I installed a 8 3/4 rearend with .391 gears (possy of course). I have a totally rebuilt driveline and a rebuilt 727 manual/automatic (It's a automatic, but I still have to shift). I have also have a 2500 stall. I am running dual exhaust with clifford headers. I have an MSD 6A ignition and an HVC 2 Blaster coil. As far as the motor, I have Jahns 11-1 Aluminum pistons with new pins and new chrome moly rings. All cylinders have been bored to 238", line bored, block milled, head surfaced, rods aligned and blanced. I have new cam bearings, new rod bearings, and new main bearings. My crank has been micropolished. The cam is a Isky VA160 cam (which I cannot find any information about). I have Isky push rods, Isky valve springs and retainers, Isky keepers. Head has been polished and matched ports, with an offy intake manifold. The biggest problem I am having is the launch. I am trying to launch at aboout 2300, but I am still bogging off of the line. I think that the gearing is good because I am going through the traps at about 5300 rpm. I have another question, what do you think my shift points should be. Thank you for all of your feed back.

D.J. Hoem
'67 Barracuda
SLANT SIX!!!!!!!

Your shift points will depend a lot on what are your cam specs, head flow, actual compression. My guess is that you probably want to shift around 54-5800. Until we know cam specs, it's hard to say much.

If you are bogging off the line, I can think of many causes. The most likely, especially if you have a big cam, is that your stall speed is too low. For that motor, I wouldn't run anything less than 3000 stall, and 33-3500 would be better. The carb tuning (accel pump circuit - cams, shooters, pump size), and timing advance curves would be a next good guess. Cam timing could be off (retarded cam), but it sounds like you have faith in your engine builder to get that right.

Lou

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Home of Slant6-powered fun machines since 1988

Thanks for the response, that does make alot of sense, I was breaking loose off of the line at 2500 rpm (causing me to red light). How would the Hyper Pack help/or hurt me, would I have to change my gearing. What about puting a 100 shot of NOS on it. I just feel like the motor wants to go faster, but its just not there yet. Is there any kind of manual on the slant six, I can't seem to find one. Again, thanks for the help.

D.J.