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Tech Talk => Engine Mechanical / Electrical => Topic started by: ron.h on June 05, 2020, 01:12:25 PM

Title: Duel quad tunnel ram
Post by: ron.h on June 05, 2020, 01:12:25 PM
Was just looking for a little input I am debating on putting a duel quad tunnel ram on my Ford 466 I am looking at two different Carburetor set ups two 450s or two 600s the engine is 9.14 to 1 compression Will have a 244/245 duration with .570/.575 lift aluminum cylinder heads port volume 275/100 cc valves2.19 1.71 I  and flow 322 195 @ 600 lift this Engine is going in my 1978 Taylor DC with an a and Peller any feedback would be much appreciated thank you and have a great day ps 1.83 to 1 Roller tape rockers


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Title: Re: Duel quad tunnel ram
Post by: angermgmt on June 05, 2020, 03:17:11 PM
I have two 600’s on mine. You can jet them down depending on the vacuum reading


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Title: Re: Duel quad tunnel ram
Post by: angermgmt on June 06, 2020, 07:26:15 AM
And plug readings of course


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Title: Re: Duel quad tunnel ram
Post by: 96Laveycraft21Xt on June 06, 2020, 07:44:35 AM
I have two 600’s on mine. You can jet them down depending on the vacuum reading


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jetting down might be that case sometimes but i have had an engine with too big of a carb on it and he actually had to jet up (richer) because the signal to the carb wasnt strong enough to pull the correct amount of fuel.  Just make sure that you have some way to check AFR before changing jets
Title: Duel quad tunnel ram
Post by: ron.h on June 06, 2020, 07:47:31 AM
Yeah I ran to 650 spread fours on a 440 duel quad tunnel ram and absolutely loved it but a much different application from truck to Boat


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Title: Re: Duel quad tunnel ram
Post by: ron.h on June 06, 2020, 10:57:03 AM
Here are the two kits that Summit Racing offers


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