I have an 88 suburban tbi and Im going to swap out the engine from a 93 truck with serp. My problem is I just noticed that the engine from the 93 has no smog pump. Not equiped in that year and my 88 has a smog pump. Can I run the engine without pump and pass cali. smog or can I swap out that bracket with one off an astro van I have access too. Astro van has smog pump and serp. will it fit?