Add a set of high flow cats or a set of race bullet resonators to tone it down some.
Mine started running like shit a while back. I just had the chance to look at it today after being gone for 12 weeks. I started tugging on wires and got the f shocked out of me when the coil wire fell off.Just bad ground issue. Tip for LS swaps. You can never have enough grounds![]()

Not saying that the elco doesn't deserve a decent second life with a ls1/t56. But that Camaro doesn't look like swap material either...Don’t have a thread for it. It’s a side project for a friend. Pulled the LS1/T56 out of this 99 Z28 camaro. Swapped it into the 73 El Camino
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It wasn’t. Sad day for the 99 HO Z28. It may live againNot saying that the elco doesn't deserve a decent second life with a ls1/t56. But that Camaro doesn't look like swap material either...