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motor is a few years old now, but not a lot of runs. 414 ci 13.25 comp. mopar 620 solid cam B1 heads with stage one port job. Koffels place built.950 holley on edlebrock torker 2. dyno'd at 565hp 550 tq

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Based on your HP and weight your a whole second slow...
so either its not making the power or its not getting
to the track...whats the MPH on your average runs

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prretty much out of the box 950 hp carb, avgmph prob 123. this is after the chang e from 4200 to 4800 conv. 124. to125 before same et. went up to the 1-7/8 headers along the line. also i do have a 1 inch spacer under the carb, been there since the start. dynoed flatteron the tq.

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Whats your fuel supply system... your MPH is low so
I'm wondering if its a fuel issue.... I should say its
low for the HP that you stated but is in line with
your ET now

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2holley black pumps into 1/2 inch al line to -6 at the carb

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Check the size of the needles and seats to make sure you don't have some of the smaller .090 needlles and seats in them like Holley use to install in those carbs.

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i see a couple things have gone unanswered. first i do not have a wideband, the bore is 4.060 stroke is 4.00. i have one last question, any chasis change suggestions or upgrades. just have 6 cyl. bars and 90-10 ce shocks. also what needle and seat should i use i have the ones in question? thanks for your time.

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I like to put .120 or .130 needle/seats in my carbs..
as said check timing squirter shot (both start and
finish)... I'm not a fan of the shocks... I like a
better adjustable one... get the best you can.. the
6 cyl bars are fine.. make sure you have good front
end travel, do a flow test on the fuel system... also
whats your cranking pressure

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prretty much out of the box 950 hp carb, avgmph prob 123. this is after the chang e from 4200 to 4800 conv. 124. to125 before same et. went up to the 1-7/8 headers along the line. also i do have a 1 inch spacer under the carb, been there since the start. dynoed flatteron the tq.

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prretty much out of the box 950 hp carb, avgmph prob 123. this is after the chang e from 4200 to 4800 conv. 124. to125 before same et. went up to the 1-7/8 headers along the line. also i do have a 1 inch spacer under the carb, been there since the start. dynoed flatteron the tq.

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.130's on the needles / seats and -8's to the carb might be a good place to start.

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The only proper way to do this is w/lower pressures.......a .120 needs no more than 6 lbs. and a .130 can run 5 lbs or less to slow down aeration. I run the smallest squirters to keep it clean and even file down the secondary cams for less shot.

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i see a couple things have gone unanswered. first i do not have a wideband, the bore is 4.060 stroke is 4.00. i have one last question, any chasis change suggestions or upgrades. just have 6 cyl. bars and 90-10 ce shocks. also what needle and seat should i use i have the ones in question? thanks for your time.

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I use a minumum of .110 on gasoline, .150 or larger on E85 I see your running a SB Mopar, not BB. I figure by running the Koffel B1 heads it was a BB Same thing applys on the fuel system