HEllO! I need A set of valves for my 1997 gt40p heads and was woundering if the gt40 valves are the same spec as the gt40p's except for the 1.54 head size on the exh valve. the saller sayed he can get me the hole set with intake 1.84s and exh 1.46 for the same price. will that work? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7935131064&ssPageName=STRK:MEWA:IT