SHO 'doesn't run' under 3k

[SHOrus]

My SHO is about to be drivable again for the first time in about 14 months! I just talked to the guy who owns the shop where it's being worked on and he said he had it started the other day, but it only ran good above 3k. He said it was probably just a vacuum leak, but I just wanted to come on here and see if there are any other possibilities if they don't get it figured out down there. Thanks

 

[projectSHO89]

Your secondaries are likely staying open instead of closing at engine startup. Will cause the engine to be quite gutless until around 4K which is where they're supposed to open.

Steve

 

[Sho-N-Go]

If they had the intake apart make sure the clamps for the boots are left loose while tightening the bolts to the heads otherwise there will be a vacuum leak. hope this helps.