If you can smell it there is most likely an external leak, but onto something hot so it burns away before dripping to the ground so you can't see it on the ground. Look around the motor for a damp spot after it gets warmed up to give it a chance to leak.
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BV heads, P&P lower, comp 218/226 cam, 4.2 bottom end, 3k stall, flow 40's, O/R x-pipe, Pacesetter lt's, SCT xcal2 (93 Ortizperformance tune), Windstar upper, 65mm tb, CAI, 8.8 w/ 3.73's, SFC's, cut springs, KYB shocks/struts, MM LCA's
blower/new cam soon
Dealer for Ortiz Performance, great tunes at a good price!