Utilized yellow pages contacted best sounding Co. about engine installation. AEI did not abide by there own contract. Promote ASE cert. Not so. Customer always had to contact AEI on repair process, not 10 to 15 days by contract kept vehicle 45 days or so. Charged more, added parts not ok'd by customer, did not contact customer on charges of adding extra parts *they chose to add* have returned twice w/ 5 quarts of oil gone charged me again for more parts and then cutomer had to find the oil leak themselves. 2 missing oil pan bolts belhousing bolts and its now there again. STill oil guage does not work milage noter does no longer operate and mechanically planned answers that tell you NOTHING are always given to you. Formal complaint will be made to Thesqueakywheel.com and defenders, BBB, BAR Assoc. Bureau auto repair and an attorney . Other complaints around the USA. Owners do nothing. Do your research or be taken! Take photos, record info, document every conversation. If you have had AEI experiences please notify me at bhousinit@***.net. Thank you.