Which Engine for 89\'? Looks like I may need to replace the 350 in my Blazer sooner than I thought. So should I go with the standard GM crate engine, or a 330hp HO version? Will the HO version work with the tbi and everything w/o changing anything? My main comcern is reliability, so I'll probably get the standard engine, so how much power does it have? Haven't found a figure online for it yet.