
Originally Posted by
techinspector1
You need more gear. The 4.10's with the 35" tires are the same thing as running a 3.28 gear with a 28" tire. Install a 5.13 gear.
Too much volume under the carb. If the spacer is not a 4-hole model, lose it.
Too much carb for a torque motor. Borrow a buddies 600 or 650 to try it out.
Too much cam for the compression ratio. Assuming a deck of 0.025" (since you don't know), your static compression ratio is 9.08:1. Swapping in a Crane #113941 (216/228 @ 0.050", intake closes 35 ABDC) and advancing it 4 degrees will give you a dynamic compression ratio of 8.169:1. Since a good strong motor will need a DCR of 8.00:1 to 8.25:1, you'll be right in the ballpark. I'm not saying use this cam and only this cam. I'm just giving you a for-instance of what specs I would buy if I had to buy you a cam. This cam makes power from 1,800 to 5,600 with valve float at 6,200 if you use all the matching hardware from Crane. Use a converter with a stall of 2,000 r's.
At 184 cc's, the heads should work fine for you. Eric thinks they are a little large and I agree with that for a torque motor, but hey, where do you draw the line on cost? Ideally, they'd be 170 but I'd keep 'em.
A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday