Don Terrill’s Speed-Talk

Its a Roots 8/71 drawthru style carb set up, Who/What Company do you recommend for a Supercharged calibrated Carb? Wanting to buy new,not just off the Shelf, with good tech help if needed after the sale tunes,drive ability. I already did the BoLaws/blp built carbs,Just sold them. Thanks for any sugg...

I purchased the same block in 96 and if yours is 99 it was probably machined by uniboring in michigan, so i would double check your lifter not fitting , i highly doubt its the block, they are machined well, if your lifter is edge orifice dont add restricters unless your lifter bore clearance is exc...

Still waiting on Barker to even get it in his shop, 6 weeks now, wish there was someone else close that could do good machine work. I did test fit the lifter, it want fit, so they have to be honed to fit, that wasent mentioned in any of the paper work with the block :D I think on the cam journal, Im...

wyrmrider wrote:i Open thh groves behind the cam bearings then index the cam bearings, stock location is a big bleed

how did you get in there to open them up??

did you open up the grooves behind the cam bearings? Nope, thats what I was asking about. they are egg shaped and look like jagged edges on the holes, see picks, The rear cam has 2 extra holes that they say restricts oil, I think the crower tappets have restrictors built into them, im guessing the ...

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well I got alittle futher along, the lifter bore are not sized. prob just need honed Ive gota get it bored before i can mock up,sq deck, surfaced for mls. Also found out the lifter bores are 300 thou taller,Crower said tappets wer made for taller bores. Prob might be with the rev kit i got I debured...

You are only passing a small amount of air to keep the pressure in the bowls at atmospheric, so the check balls will not likely hurt. Those are for rollover or extreme angles on the vehicle or a lot of bouncing motion. "Reduce fuel slosh from vent tube during hard launches" is what holley...

how about trying these ??? https://www.holley.com/products/fuel_systems/carburetor_components/carburetor_accessories/parts/26-342 I saw those figured they might be restrictive being its a ck ball?? I might try that, prob have to put them on only at the track ,might be to tall and hit my air scoop/f...

#8 w/ 2 pass, but it has no specklin

What do you all think about jetting up the far back 2 jets??? maybe help the rear being leaner. I wouldnt think it would that much diff on a supercharger

#6 w/ 2 passes and some idle time this was the 14.8 -15.2

Ive seen a few guys running the lexan scoops, 2 people said it pick up some speed, not sure if they did it for the air going across the carbs, this pick guy said it was cheaper blowing it off (NOS)compared to a scoop molded into hood :shock: Im thinking this would be close to what I made, but im thi...

That is a classic appearing data log from a carb with the bowl vents open to vehicle air speed. The faster air speed is at any location, the lower the pressure will be. (Bernoulli's Law, as applied by Venturi et al. = Carburetor. LOL) You say there was no filter on the carbs, this is what you get f...

Tuner wrote:

What do youall think is causing it to go lean in high gear?????

This

Im not running the airscoop/filter on these passes also.

If richen up for high gear want it be too rich in 1st?????????