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Anyone try putting spacers on top of a tunnel ram and is there anything positive to be gained by using any spacer?

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It depends on the tunnel ram manifold and the needs of the motor I have heard of people using both four hole and open two inch spacers on tunnel rams and going faster with them than without. I used a set of 1.5 inch tapered Dominator to 4150 adapters on this fabricated tunnel ram with two Holley 750 D.P. carbs. the motor was a 471 C.I. (440 block) bracket motor that ended up making over 720 HP at 7000 RPM I had used some of the same parts(cam and lifters, cylinder heads, rockers with a single 1050 Holley 1050 CFM Dominator carb. and intake) on another 452 C.I. bracket motor with more compression that ended up making almost 100 HP less at 5900 RPM I think that this is one of those "you got to try it on your combination" to find out if it works or not EDITED: Oops, forgot the picture

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Quote:

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Anyone try putting spacers on top of a tunnel ram and is there anything positive to be gained by using any spacer?

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It depends on the tunnel ram manifold and the needs of the motor I have heard of people using both four hole and open two inch spacers on tunnel rams and going faster with them than without. I used a set of 1.5 inch tapered Dominator to 4150 adapters on this fabricated tunnel ram with two Holley 750 D.P. carbs. the motor was a 471 C.I. (440 block) bracket motor that ended up making over 720 HP at 7000 RPM I had used some of the same parts(cam and lifters, cylinder heads, rockers with a single 1050 Holley 1050 CFM Dominator carb. and intake) on another 452 C.I. bracket motor with more compression that ended up making almost 100 HP less at 5900 RPM I think that this is one of those "you got to try it on your combination" to find out if it works or not EDITED: Oops, forgot the picture

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I have a weiand tunnel ram with 2x750 DPs so I was wondering if any gains would be made with this intake hence my question. I would like to get my combo in the 700 HP range so anything simple I can do helps.