Seems a little slow...

340dart.812 said
With open chambers and domed pistons you can run alot more timing at launch but it has to retard in each gear like this
1st gear 42 degrees
2nd gear 36 degrees
3rd gear 28 degrees

If you want to test this to see if it works before you buy a retard box then lock the dist so it has no advance and start at 36then run it and keep upping the timing 3-4 degrees and run it down the track you should notice your 60ft times getting faster and your mph getting slower. So now start back at 36 and retard the timing 3-4 deg at a time and your 60 will suffer but mph will improve. If you try this and you get these results then you know to go and buy a retard box.

I'll have to give this a try. It's easy enough to lock out the distributor, I can probably do it in under a half hour.

340dart.812 said
One other thing that cam needs 150-160 psi to be happy and you should only be at 125-135 with your combo. Unless you milled alot off your heads. So either up the compression or swap the cam. Either way it should pick up time but it will be alot more if you leave that cam and up the compression. Your converter should be right for the cam Have you done a compression test??

Compression is 155 to 165 across all 8 cylinders. I cc'd the heads before I assembled the engine and they're all right at 64 & 65cc.

340dart.812 said
And you could use some more gear like a 4.33 or a 24in tire. Not the 4.88 just about 1/3 of that

Smaller carb 650 dp will work just make sure it has the 50cc acc pump kit

904 trans is good for 3-5 tenths

Put the victor jr back on and give it some more fuel too.

You should be running in the high 12s

But dont give up you will get figured out you current times are pretty respectable I know of quite a few 360 340 cars that are slower than yours

Good luck

I'll look into the gears, but unless I can pick them up cheap, it probably won't happen for a while.

I have a pair of 50cc pump kits that I picked up, just in case.

There's been a lot of good suggestions here, sounds like I need to get started. I'll try to keep everyone up to date on where I'm at on this thing.

Between the full time job and full time school, I'll be working on this as much as I can. I want to get it sorted before the track closes at the end of October.

Thanks! :grin: